Two early items: a TLS signed "Donald K. Slayton," one page, 7.75 x 10, Project Mercury letterhead, October 2, 1961, to Miss Marquita Park, in part: "It is always a pleasure to hear from persons such as yourself who show such an interest in our project. I have enclosed an autographed photograph, as you requested"; and an official vintage glossy 7.5 x 10 black and white publicity photo, signed and inscribed in fountain pen, "Best wishes to Marquita Park, Donald K. Slayton." In fine condition, with slightly trimmed edges. From The Bill Lende Collection.
Terms and abbreviations used in our descriptions.